UTM Builder

A UTM builder turns a plain link into a trackable campaign URL by appending UTM parameters — the tags Google Analytics reads to attribute traffic. Marketers tag every ad, email and social post so they can see in GA4 exactly which campaigns drive sessions, conversions and revenue. This UTM link generator assembles the URL for you and encodes each value correctly, so a campaign name with spaces or symbols never breaks the link.

The five standard parameters are utm_source (where the traffic comes from, like google or newsletter), utm_medium (the channel, like cpc, email or social), utm_campaign (the campaign name), utm_term (paid keywords) and utm_content (used to A/B test two links to the same page). Source, medium and campaign are the three you should always set; term and content are optional and most useful for paid search and split testing.

Unlike server-side campaign URL builders, this tool runs entirely in your browser — nothing you type is sent anywhere. It also handles URLs that already contain a query string, joining new parameters with & instead of ? so your tracking links stay valid. Copy the finished URL straight into your ad platform, email tool or link shortener.